S-91313A142 M5 x 5 mm Set Screws

Key Features & Benefits at a Glance

• Secure Anti-Loosening Performance: Serrated locking design ensures vibration-resistant holding power in demanding applications.
• Exceptional Corrosion Resistance: Manufactured from 18-8 Stainless Steel for long-term reliability in harsh or humid environments.
• Optimized Mechanical Strength: Rockwell B80 hardness provides a durable balance of strength and toughness to resist deformation.
• Precision Thread Engagement: Class 6g thread fit guarantees consistent, reliable fastening with standard M5 nuts and threaded components.
• Easy Installation in Confined Spaces: The headless design with a 2.5mm hex drive allows for installation flush with surfaces and access in tight areas.
• Enhanced Grip and Minimal Surface Damage: The cup tip concentrates clamping force for a secure grip while being gentler on the contact surface compared to pointed tips.
• Broad Industrial Compliance: Meets RoHS 3 and REACH regulations, ensuring suitability for use in regulated markets and sensitive applications.

Professional Applications & Engineering Value

This M5 hex headless set screw is engineered to solve critical challenges in industrial assembly and precision machinery. Its 18-8 Stainless Steel construction offers excellent resistance to rust and corrosion, making it ideal for applications in automotive, electronics, and outdoor equipment where environmental factors are a concern. The combination of a headless design and 2.5mm hex drive is specifically valuable for assemblies requiring a flush finish and access in confined spaces. The serrated locking feature prevents unintentional loosening under vibration, a common failure point in dynamic systems. Furthermore, the coarse thread (M5 x 0.8mm) ensures quick and easy installation, reducing assembly time while the cup tip provides a firm grip on shafts and collars without causing significant surface marring. This fastener delivers reliable, maintenance-free performance in permanent or semi-permanent positioning tasks.

Specification Summary & Compliance

This set screw conforms to Metric standards with an M5 x 0.8mm coarse thread and a precision Class 6g thread fit for consistent performance. It is manufactured from 18-8 Stainless Steel and features a right-hand thread direction. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free of restricted hazardous substances and suitable for use in industrial and consumer goods across regulated markets.